Bad missfire/surge
UPDATE!
Figured out the problem. When my buddy was doing plugs I told him to get the autolite 3923 since I havent had a problem with them and they were cheap but he forgot to mention to me that he changed his mind and got the autolite 5224 double platinum or something I found this out earlier today. So I got on the FAQ and looked at the spark plug chart and right there in red says not recommended. We put his old plugs back in a damn runs like a champ. Now the best part of today when he got the plugs the guy recommended them to him and we went back to raise hell and they said well our computer just shows us what fits in the engine not what is recommended for your truck WTF! What kind of business are they running wont even refund money thats major bs if you ask me!!
Figured out the problem. When my buddy was doing plugs I told him to get the autolite 3923 since I havent had a problem with them and they were cheap but he forgot to mention to me that he changed his mind and got the autolite 5224 double platinum or something I found this out earlier today. So I got on the FAQ and looked at the spark plug chart and right there in red says not recommended. We put his old plugs back in a damn runs like a champ. Now the best part of today when he got the plugs the guy recommended them to him and we went back to raise hell and they said well our computer just shows us what fits in the engine not what is recommended for your truck WTF! What kind of business are they running wont even refund money thats major bs if you ask me!!